ul.timeline {
            list-style-type: none;
            border-left: 1px dashed #B2B2B2;
            margin-left: 20px;
            padding: 0;
            margin-top: 9px;
        }

        ul.timeline li {
            position: relative;
            margin-bottom: 16.2px;
            margin-left: -22px;
        }
        ul.timeline li .time {
            position: absolute;
            width: 90px;
            text-align: right;
            left: 0;
            top: 10px;
            color: #999;
        }
        ul.timeline li .version {
            position: absolute;
            width: 290px;
            text-align: right;
            left: -200px;
            top: 30px;
            font-size: 40px;
            line-height: 50px;
            color: #3594cb;
            overflow: hidden;
        }


         ul.timeline li .number {
            position: absolute;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background-color: #D6EDFF;
            border: 1px #007EE5 solid;
            margin-left: 18px;
        }




        ul.timeline li .content {
            margin-left: 40px;
            margin-right: 20px;

        }
        ul.timeline li .content pre {
            background-color: #3594cb;
            padding: 20px;
            color: #fff;
            font-size: 13px;
            line-height: 20px;

            overflow: hidden;
            margin-bottom: 0;
            white-space: pre-wrap;

            background: linear-gradient(to bottom right, red , blue); /* 标准的语法 */
        }
        ul.timeline li.alt .content pre {
            background-color: #43B1F1;
        }






        /**   li **/
        div.title{
            border-left: solid #007EE5 3px;
            margin-left: 20px;
            width:fit-content;
            width:-webkit-fit-content;
            width:-moz-fit-content;
            background: linear-gradient(to left, rgba(237,247,255,0.00) 0%, rgba(214,237,255,0.50) 44%);
        }
        span.tiltx{

            color: #007EE5;
            font-size: 14px;
            line-height: 20px;
            margin-right: 10px;
            margin-left: 13px;
            margin-top:2px;
            margin-bottom:2px;
        }


        div.step{
            font-family: PingFangSC-Medium;
            font-size: 13px;
            color: #007EE5;
            letter-spacing: 0.65px;
            line-height:18.5px;
            margin-bottom: 10px;
            font-weight: 600;
            width: 100%;
            margin-top: -4px;

        }

        div.tdesc{
            font-family: PingFangSC-Regular;
            font-size: 12px;
            color: #323232;
            letter-spacing: 0px;
            line-height:16.5px;
            margin-left: 20px;
            margin-top: 8px;
            margin-right: 10px;
        }


        img{
            width: 269px;
        }
        div.divimg{
            margin-left: 4%;
        }



        span.destxt{
            font-family: PingFangSC-Regular;
            font-size: 12px;
            color: #323232;
            font-weight: 400;
        }
        body > div{
            display: none;
        }